Area of Parallelograms
Formula for the area of a rhombus
A = b x h
Formula for the area of a triangle
A = (b x h) / 2
Formula for the area of a trapezoid
A = (b1 + b2) x h / 2
Formula for the area of a kite
A = d1 x d2 / 2
OR find area of 1 triangle and add both triangles up
What is the acronym for metric conversions and what does it stand for?
King Henry Died Unusually Drinking Chocolate Milk
Kilo, Hecto, Deca, Unit, Deci, Centi, Milli
A parallelogram has a base of 6 cm and a height of 4 cm, what is its area?
Area = b x h
Area = 6 cm × 4 cm
Area = 24 cm²
A triangle has a base of 12 cm and a height of 5 cm. What is the area?
A = b x h / 2
A = 12 x 5 / 2
A = 30cm²
A trapezoid has bases of 6 cm and 10 cm, with a height of 4 cm. What is the area?
A = (b1 + b2) x h / 2
= 16 x 4 / 2
= 32 cm²
A kite has diagonals of 6 cm and 8 cm. What is the area of the kite?
A = d1 x d1 /2
= 6x8/2
= 24 cm2
A pencil weighs 0.03 kilograms. How many grams does the pencil weigh?
There are 1000 grams in 1 kilogram, so:
0.03 kg×1000=30 grams
If the area of a parallelogram is 56 cm² and the base is 7 cm, what is the height?
Height = Area ÷ Base
= 56 cm² ÷ 7 cm
= 8 cm
A triangle has an area of 24 cm² and a base of 8 cm. What is the height?
A = b x h / 2
24 = 8h/2
48 = 8h
h = 6 cm
The area of a trapezoid is 84 cm², with bases measuring 10 cm and 14 cm. What is the height of the trapezoid?
A = (b1 + b2) x h / 2
84 = (10+14) x h / 2
84 = 24h / 2
168 = 24h
h = 7 cm
A kite has an area of 96 cm², and one of the diagonals is 12 cm. What is the length of the other diagonal (d1)?
A = d1 x d2 / 2
96 = 12 x d2 / 2
192 = 12(d2)
d2 = 16
A swimming pool holds 350,000 milliliters of water. How many liters of water are in the pool?
There are 1000 milliliters in 1 liter, so:
350,000 ml÷1000=350 liters
A parallelogram has a base of 8 inches and an area of 64 square inches. What is the height?
Height = Area ÷ Base
= 64 in² ÷ 8 in
= 8 inches
The area of a triangle is 48 cm², and the height is 3 cm. What is the base?
A = b x h / 2
48 = b x 3 / 2
96 = 6b
b = 16
The area of a trapezoid is 72 cm². If one base is 9 cm, and the height is 6 cm, what is the length of the other base?
A = (b1 + b2) x h / 2
72 = (b1 + 9) x 6 / 2
144 = (b1 + 9) x 6
24 = b1 + 9
b1 = 15
The area of a kite is 72 cm², and one of the diagonals is 9 cm. What is the length of the unknown diagonal (d2)?
A = d1 x d2 / 2
72 = 9 x d2 / 2
144 =d2(9)
d2 = 16cm
A ribbon is 150 centimeters long. How many meters long is the ribbon?
There are 100 centimeters in 1 meter, so:
150 cm÷100=1.5 meters